Face-mask



D. DE ROSIER.

FACE MASK.

A-PPLIACA-TION' FILED JAN. 6. 1.920.

Patented June 8, 1920.

2 SHEETS-SHEET 1- D. DE ROSIER.

FACE MASK. APPL ICATION IT'ILED JAN. 6. 1920'- 8 2 SHEETS-SHEET 2- PZATENT OFFICE.

DAVID DE ROSIER, OF BRADDOCK, PENNSYLVANIA.

FACE-MASK."

Specification of Letters Patent.

Application filed January 6, 1920. Serial No. 349,751.

To all whom it may concern:

Be it known that I, DAVID DE Boston, a citizen of the United States, residing at Braddock in the county of Allegheny and State of ennsylvania, have invented certain new and useful Improvements in Face- Masks, of which the following is a specification. i

My invention is an improvement in face masks for protecting the face and the front and upper portion of the head of the wearer from excessive heat, for the use of furnacemen, founders, mill workers, or others, whose employment is in close proximity to heat of high temperatures.

In order to utilize the". heat-arresting quality of a partly open screen, as wire netting, in a face mask, it is necessary to provide ample opportunity for free circulation of cooler air to all rear-parts of the device to counteract the penetrating effect of the heat at the dividing line of the mask itself. This is because a mask, of .wire netting .or the like, is not an efliciently good barrier to the passage of heated air unless its'progress through the mask is counteracted by an opposing body of relatively cold. air, free to circulate laterally of the, mask and to be continuously renewed by fresh air, asit becomes heated. 1

While an ordinary wire netting mask may be used for face protection, and will operate to temporarily arrest heated air to a limited degree by providing a percolable barrier, the inner air, if confined, will in time become heated to substantially the same temperature as the outer hot air, rendering the-mask under such conditions in ifective.

In my invention, I have provided means for establishing a constant fresli'air circulation to all the rear and inner portions of the mask, whereby to always maintain this desirable condition, while also providing a very simple, highly efficient, durable, and inexpensive protector for the purpose in tended.

The present invention is an improvement eon the subject matter of m application filed December 9, 1919, Seria No. 343,565, principally as to the upper portion of the mask.

In the drawings which show certain preferred constructions,

Figure 1 is a face view of the mask in" elevation;

Fig. 2 is a view in side elevation showing the device as applied and used;

F1g. 3 is a vertical sectional view on the line III-III of Fig. 1 showing the double shield construction throughout;

Fig. 4 is a partial similar view showing a modified construction;

Patented J une 8, 1920.

face and front of the head, and for protection of the top of the head, in addition to the face protection, by extending one or both of the main front protecting members upwardly and rearwardly so asto partly or entirely cover the head in the manner shown and hereinafter described.

Referring to the drawings, the main front protecting portion of the mask consists of an inner section a and an outer section 6' of suitable perforate material, as wire netting or the like, one or both of which are provided with an upper su plel 7 mental similar portion 0 and d. hese shield portions a and band 0 and d are rounded to conform generally to the 'contour of the face of thewearer in horizontal section, but are generally straight "injavertical section, as shown, and are eachgmaintained in position'by a surrounding securing border or band 2 and 3 of thin sheet metal extending entirely around each shield member.

These bands may be conveniently formed of a U-shaped section, as indicated in Figs. 3 and 5, with connecting rivets at intervals or by soldering or in any other suitable manner. A reinforcing intervening transverse connecting member 4 and 5 may be used, if desired, for each member, whereby to fixedly hold the parts in desired position and for the purpose of attachment to. the main holding band 6 and for holding the front and rear sections in proper relative positions.

The shield as thus made is connected to band 6 by its terminal edges, and at inter-.

being provided with a longitudinal slot 11' adapted to slidingly engage a holding bolt 12. Said bolt is secured to the other ter- ,7

minal and is provided with a tightening thumb nut 13 whereby the band may be tightened around the head of the wearer and secured in position in the manner .shown in Fig. 2.

Extending backwardly from the upper edge portion of one or both upper front shield members 0 and d are supplemental coping shields e and f respectively, the rear edges of which are provided with connecting frames 14 and which are fixedly attached to the rear edge portions 2 and 3 above the securing band 6, in the manner shown in Figs. 2 and 3.

By this construction, the entire face, neck, and front andupper portions of the head of the wearer are protected, enabling the user to not only face a source of heat, but also to lower the head and present its upper portion behind the upwardly and rearwardly extending top of the mask. If desired, the top or coping screen sections may be extended still farther back to more effectually protect the top of the head, as indicated in dotted lines at g, and one or both of the main screen sections ma in the same manner, be extended backwar ly to protect the ears, as at h, Fig. 2.

The vision of the user is not materially interfered with by reason of the open work wire netting, and the continuous open spaces 9 and 10 provide for ample circulation of heated air upwardly and rearwardly from the top, due to the free access of cooler air to the reverse or inner sideof the mask and the bottom and side spaces between its inner and outer portions.

In Fig. 4, I show a modified construction in which the front upper shield 03 is terminated at its top and the inner shield a only is extended backwardly, providing the top protector e, and it will be understood that either the single or double constructions may be used, a single shield being in many cases quite sufiicient where the top of the head is not much exposed.

While the band 6 may ordinarily be made of light thin sheet metal, it will be obvious that a leather or other strap may be used to good advantage, with greater flexibility. Also, that a padding or cushion 15 may be inserted around the inner face of band 6 for ease in application and wear.

In Figs. 7 8 and 9, I show a modified construction, in which the inner shield a is proprovided with sight openings covered by lenses or panes 16 of glass or other suitable transparent material, at positions opposite the eyes of the user. These are of advantage in assisting the vision, especially where the wire netting is of closely spaced strands, for one or both of the shields. The glass panes 16 are inserted upon suitable openings cut away in the shield, and are secured to the netting a in any convenient manner, as by surrounding frames 17 secured to the netting and with flange or lip engagement with the panes, or otherwise as desired. By this means, the full protecting advantage of the outer screen I) is maintained with the vision obstructing tendency of the netting reduced to a minimum.

It will be understood that the spacing of the shield sections may be varied within practicable limits, to secure the desired results, depending upon the degree of the heat, time of exposure, etc., and that the mask as a-whole may be made in any suitable sizes, proportions, or variations in design, and that theinvention may be variously changed or modified in different details by the skilled mechanic, but all such changes are to be considered as within the scope of the following claims.

What I claim is:

1. A protecting mask consisting of a continuousvertical partly-cylindrical open back front sheet of suitable perforate material adapted to extend around the face of the wearer and provided at its top with a rearwardly extended perforate coping portion, and an annular'holding band fixedly secured to the front member at intervals byintervening outwardly spacing connections adapted to hold the mask on the head of the wearer with the front portion beyond the band and face and theecoping portion above the head of the wearer with a continuous intervening air circulation space.

2. A proqjting mask consisting of a front shield of s able perforate material provioled with a rearwardly extending coping at its upper portion, an attaching head band connected to the front shield, and a supplemental shield secured to and spaced out wardly from said shield.

3. A protecting mask consisting of a front shield of suitable perforate material provided with a rearwardly extending coping at its upper portion, an attaching band connected to the front shield, and a supplemental shield secured to and spaced out wardly from said shield and provided at its upper portion with a rearwardly extending outer portion spaced beyond the first named upper shield portion.

4. In combination, an inner and'an outer front shield member of perforate material each having arearwardly extending upper coping with a continuous intervening air circulation space, connecting devices, and a securing band connected with the inner shield member and spaced away therefrom.

5. A protecting mask consisting of a curved front shield of suitable perforate material, an inner shield of similar material spaced away therefrom and provided with 15 eye glasses, and a holdin band.

6. The combination w1th a front curved face mask of suitable perforate material and a holding frame therefor, of a similar rear inner curved mask section fixedly connected 20 with an intervening space to the front mask and to the frame and provided with eye openings having transparent covers and a holding band. I

In testimony whereof I hereunto aifix my 25 signature.

DAVID DE ROSIER. 

